Your child will have fun getting where he needs to go with the Schwinn Boy"s Ranger 24-inch Mountain Bike. This bike has front and back linear, u-brakes for easy stopping. The seat can be adjusted easily to the correct height with its quick-release mechanism. This bike has 21 gear speeds for easy pedaling uphill or downhill. Its Shimano derailleur provides easy and precise gear changing. The knobby tires give excellent traction on muddy or gravel surfaces. This silver mountain bike has a sturdy steel frame and alloy rims. It comes with a kickstand for easy parking. This 21-speed mountain bike requires assembly.